4Kim, Sukkoo, 1998, Economic Intergration and Convergence: U.S.Rcgions, 1840-1987, Journal of Economic History vol 58, No. 3: 659-683. 被引量:1
5Krugman, P.R., 1991, “Increasing Returns and Eco-nomic Geography”, Journal of Political Economy, 99 (3):484-499. 被引量:1
6Krugman, P.R., Venables, A.J., 1990,“Integration and the Competitiveness of Peripheral Industry”, In C. Bliss and J. Braga de Macedo(eds) Unity with Diversity in the European Community ,Cambridge : Cambridge University Press. 被引量:1
7Puga, D., 1998,“Urbanization Patterns: European versus less - dess deleloped countries”, Journal of Regional Science, 38 (2): 231-252. 被引量:1